Simple Login App using Database Tutorial - User Registration (PART 1)

[@hasnainsial7511]

Bro i have watched alot of tutorials even the paid ones but none of them teaches as good as you, Great man, Keep it up, You got a new subscriber

[@ProfessorDK]

+Hasnain Siyal Glad you liked it. Encourages me a lot. Appreciate it. Thanks mate :)

[@hasnainsial7511]

Bro i have a request for you !!!

[@hasnainsial7511]

Can you please make a simple groupchat app tutorial Plzzzzz

[@ProfessorDK]

Will do. But probably by mid March :)

[@dadasajad8741]

Mataan na manjeen Siyal sb!

[@tridibroyarjo418]

Sir, your videos are great and always been helpful. You teach us without any fees. You are a hero !

[@vishnubhaarath7002]

It is an awesome tutorial, I guess there is an logical error, it has to be if(name.isEmpty()|| password.isEmpty()|| email.isEmpty())

[@vinayreddy127]

explanation is perfect....you r the best teacher

[@baharl2981]

9:32 is the code part *if you want to skip the interfaces work*

[@rwill.7313]

Thanks again for your hard work! I am especially thankful that you explain as you go on, and you also make the text large enough so that I can easily view it.

[@jessbini2504]

Hey proffesssor , I am a 13 yr old who has taken up android programming in java . Thank you , bcuz your videos are very helpful.

[@ProfessorDK]

Glad to hear that, happy learning :)

[@ProfessorDK]

The app and code in the video are tested and perfectly working. However, I have seen that some of you are facing difficulties and getting some errors, so here is a beginners guide to debugging: 1) Error: Null object reference Solution: This always means you have given the wrong XML ID, just correct it 2) Error: User Credentials not sent to Firebase Solution: Check if you have added all dependencies else do the following: In Android Studio, go to Tools > Firebase. Click on it. A new tab will open. Click on Authentication > More Info > Email and Password Authentication Link. Another tab will open. Check if the first step shows connected to the database. If not, just click on it and you should be asked for Firebase credentials and on entering that, you will get connected :) 3) Error: App is crashing Solution: Check your logcat section present at the bottom of Android Studio, it will tell you where you have made the error or what caused the error. Just go to that line then and debug. 4) Error: App crashing in emulator: This happens because your emulator doesn't have the latest google play store services. Either update play store or just run it on normal phone Also, some things to note: 1) Every new user must have unique email ID 2) The password length must be more than 8 characters long 3) Internet must be ON Hope this helped everyone :)

[@nojevictoria3484]

Hi, Correct me if I am wrong, in the validate function you did not use logical or but logical and, because of this the user should be able to register to the database even if he/she has entered only one of the required. Thank you :)

[@kemboisimion9594]

Wow!!!! what a great tutorial Sir. i was stacked in that part but finally have been able to do it. Practice!! Practice!! Practice!! is the key. Bravooooooo!!!!!!

[@surendarvj9898]

Thank you so much sir ...it is easy way to understand the concept and to create a app ...like to u post more interesting apps using firebase and Android

[@MohammedAli-mc1dm]

love your videos, sir! thanks for sharing!

[@palashghosh8773]

Thank you sir ..I will always support you ..I want be a developer like you

[@moseaf83]

thanks for the valued content

[@prashanthkumar4222]

Big Thumbs Up

[@poojapatel-ts9us]

Thanks sir .....This is very useful for beginners........again thank you very much sir....

[@Miguel_le_Petit_Crabe]

coool thanks this one is better

[@arfanjr6329]

matur kasoon for the teaching,it helps a lot. good job

[@nicholasmuriithinjeru820]

You are awesome teacher, great work, thank you.

[@jhennelynsarmiento3298]

Hello Prof, you are a good teacher! I like the way you teach how the code works. It's not just coding but I am learning how the codes work. You really helped me with your videos! Good job! God bless you! And yea, I am your new subscriber as well! :)

[@ProfessorDK]

Glad to hear that. Always a pleasure. Happy learning! :)

[@hunterbrown28]

Professor DK, thank you for taking your time to make these videos. I am new to programing and just started learning last week with your original Simple login app tutorial you made in 2017, I quickly started having issues but shortly found your updated series and instantly had success. I am finding myself having issues with this series as well and am wondering if it is because of the updates. I have 4.1.2 running right now. do you have any planes on updating this series in the near future?

[@barskarakas4927]

Thabk you so much realy clear straight through explaination

[@dadasajad8741]

PROFESSOR DK Thanks very much. Please come to Jamshoro, Sindh, Pakistan and have our tea. I am truly grateful to you. May GOD bless you.

[@ProfessorDK]

Sure thank you so much :)

[@dadasajad8741]

@@ProfessorDK You are welcome.

[@koober_]

Great video! Your explanations are easy to follow and useful even without much Android Studio experience. However, I think you could make the code be a little more accurate at 18:38. Since we want to give the error if *any* of the fields are missing, I think we should use || instead of &&, as this will evaluate to true if even one of the fields is missing, while the version in the video only evaluates to true if ALL fields are missing.

[@ProfessorDK]

Yeah that was a logical error. However at the end of the video, I do make that change :)

[@koober_]

Oh, sorry about that, I should've waited until the end before commenting. Thanks for the tutorials, they're great!

[@ProfessorDK]

No problems :)

[@AKSKMY]

@Professor DK, I've change the code to || instead of && but app still crash when the fields are empty? Any idea why?

[@tubagusputra5788]

your video so helpful, thanks anyway!! great job.

[@6977202865]

thank you very much!!!!! excellent videos!!

[@obtron]

at 18:50 shouldn't it be or instead of and

[@AnshumanAbhishek]

I too felt the same and came to comment section to see if someone has the same issue.

[@macximu15]

Hi, I from Brazil, your video is much good thank you

[@glastondsouza9596]

Thanks Bro! your videos are very helpful..keep up the Good work brother!

[@easycodingwithammara4812]

nice video😍

[@harveyagabs]

I really2x like you video sir. Thank you

[@fatimazahra-oi7hw]

Tank you very match you are a good teacher for people poor for hole word and thanks lots

[@akashchachad4329]

Good Teaching!

[@MultiGamer0123]

Amazing videos

[@yerim770]

Thanks a lot! It really helped on my project!!

[@boniton100]

Hi professor if is not asking to much can you make a video on how to add camera in your app? Thank you...

[@chaligudina4152]

very very thanks but what if you use mysql it is very good since more person's use that one

[@pradeepmondalp9426]

You are awesome sir

[@pinkfloydjaneo]

19:20 should it be or not and?

[@ahmedalqumiri6214]

Well done dude

[@alaazaid3597]

Hi Doctor, Please let us know how the fingerprint works for a beginner programmer in an android software.

[@mukeshsuthar8378]

Great video hermano...gracias

[@kaahmotionsdesign5236]

First I would like to thank your spreading knowledge and your efforts & your Tirelesness secand . Pro. We want to prepare if it is posible for you 1.Alumni Apps (system to share and chating University Graguated Students)

[@ProfessorDK]

Sorry but quite busy with some work myself :)

[@newstribune9923]

Sir its making issue whenever I want to move from main activity to registration activity through the intent......on the emulator it shows, unfortunately, the app has stopped and in logcat there is no error everything is perfect....Kindly guide me....Thanks

[@ivaylospasov8162]

The validate() method checks if all the Strings are simultaneously empty, so as long as one of them is not null it would return true?

[@alaazaid3597]

If the data is ready and archived in DataBase and do not want screen input for student data, how can I create a screen input in this way?

[@niteshdewangan7522]

sir whenever I used constraint layout it only works best for my device and get messed up in different screen sizes. what should I do to overcome this problem?

[@jzealmedia]

I think most algorithms have changed in Android Studio 3. Can you please update with current Android Studio version? Thanks.

[@rahulrd8807]

In validate , in if case the word isEmpty is not enabled for me?? There is any alternative word?

[@MohammedMutwakil]

Hi Professor, I have a question please, one of the reasons to create a splash screen is to see something until the app finish loading, my question is instead of make waiting by seconds (5, 6, 7 ... second) it's possible to make this waiting until exactly the loading is finished, if it is, please Sir show me how

[@randy4443]

How can I use one onclicklistener to handle multiple buttons?

[@kanteshmetri2896]

Sir I m getting this error Failed to Capture snapshot of out files for task and Failed to create MD5 hash for file so what should I do ..?

[@hameedullahsakhizada4607]

Very good video sir but could you please also show how to add a confirm password edittext.

[@babytarot18]

Cool video I applied

[@jayantsharma246]

You are great bro

[@devajeetega]

sir i m building an app and wanted to know how to verify the email/password entered by the user matches with the email/password already entered by him which is stored in the firebase database...because in the login activity i have to check whether they match or not..

[@AbdulHafeez-hn5ck]

Professor, can you please help on how to save user data and location to firebase at the same time?

[@vikramjitsingh6830]

Bro Android Studio 3.6 version 2020 mein fer se video banao. Full Login version

[@marinoszenonos]

why are you using && operator instead of || in private boolean validate?

[@uppolice09]

Sir I want navigation drawer and main page pr list view kaise link kre

[@boniton100]

Hi, professor, for some reason I cannot link my android studio whit firebase? Do I have to apply permission in the android manifest? (Internet permission)?

[@ProfessorDK]

Yes u need to add internet permission

[@boniton100]

Professor DK thank you for your responde. Now is working👌👌👌👍you the best

[@entrepreneur6303]

Sir How to apply Strick * on mandatory edit text field?

[@ProfessorDK]

Add the asterix * to the Textview above the EditText field. You can check if the field is empty in the code and throw error to the user saying this is a mandatory field.

[@weloveginga]

Awesome!!

[@poojatikhe2046]

very helpful it was

[@clearupscias]

Sir can u make a quiz online exam.... how much it may cost

[@punjabweb]

Hello Brother ... your app code is not running in my Android studio 3. It shows build failed. can you share this code for android studio v3?

[@ashiqrahman574]

15:30 setupUIViews is showing error

[@ashishshrivastava9966]

Hi....In the mainactivity page you have not given onclicklistener to the newuser/sign-up text view. I tried to give onclicklistener to it in the mainactivity page by defining (private TextView userRegistration) in the main Activity class and then in the onCreate function inside the main activity i tried to give on click listener to userRegistration in the same way you have given to login text in the registration activity page....after doing all this when i am running the app it is getting crashed after installation. Kindly let me know what is the issue.... i have given all id's different....

[@ProfessorDK]

Check out the part 2 of this video series. In that I have implemented the OnClickListener on the SignUp TextView :)

[@alimahmood4158]

sir i have learn a lot from this course can you tell how to upload video file in firebase under specific user account

[@vimalpalanisamy6189]

sir i got a one problem in the android studio FirbaseAuth can't declare because it shows class path is unresolved error

[@rajasahu4150]

Hlo how to link database in kadular app

[@ajaybirla8339]

sir when i click in profile from secondActivity , it works as i want to go profileActivity but after 2-3 second it goes automatically back to the secondActivity. please guide me sir.

[@KaushalKumar-ju7yp]

awesome sir

[@rakeshkhorwal6792]

Sir pls you have to create mobile banking application using Android studio

[@nagaraviaspari6668]

But I have to access the admin to select the users who were registred when I create an sports registartion form...Admin has to retrive the users who were applied for the registration.

[@ProfessorDK]

Could you define what u mean by admin here?

[@avvalyadav3625]

Sir, my code is showing error: cannot resolve symbol 'setOnClickListner'. Please tell me how can I fix this

[@javacodingcommunity]

setOnClickListener, you missed an 'e'

[@richarddelwinmyloth7738]

Thanks a lot Professor

[@ProfessorDK]

+Richard Delwin Glad u liked it, happy learning :)

[@kaushikshirsikar7602]

Hello....I am getting error for validate please tell me what to do

[@venugopalvangari9556]

Savage tutorial

[@brettp98]

Could this be implemented on SQL developer?

[@maanvendraprajapati6809]

As i'm clicking Sign Up Button it is giving me a message as "App Stopped Working", Can somebody help me out here? Thank You

[@MrFyce]

How to add events to calendar setting time duration etc.

[@flojcliff7245]

where to input the etusername in xml file?

[@karishmasharma5571]

XML me onClick attribute ni aa rha to kaise kre ?

[@rebeccawilliams3261]

Sir can you tell me, What is major difference between java,c# application?

[@senthilkumar481]

java, c# name is diff. but also same

[@Kermitthesatan]

can u do a video where once u put in password u can get to the calc u made or something else

[@ProfessorDK]

Its simple, you need to provide an intent to the calculator activity. Do let me know if it worked for you :)

[@Kermitthesatan]

it worked thx

[@vinayrao7542]

Sir if i make an app by simpy using the above code from ur videos and other videos then is there any chance of the app being hacked??

[@ProfessorDK]

Nope. Since, you are accessing database linked to your google account. It has the same security as gmail account does. So it is safe from hacks unless the password is really weak :)

[@NathanLeePHP]

@2:33 and @3:30 is that car crashes in the background? :-O

[@ProfessorDK]

+Nathan Lee Well, idk about that but one things for sure. My audio quality definitely has crashed xD

[@NathanLeePHP]

haha! :)

[@kamarastudio-k27c]

use sqlite database?

[@MrFyce]

why need make name when registering account when we only use email id and password to login?

[@Programming177]

how to create multiple users? login

[@nagaraviaspari6668]

Bro..I created user registration and login app...But I am not able to create admin login for the app. Please help me to provide admin login access for the access.

[@ProfessorDK]

If u want an admin login you can just have an if else loop with the condition having your unique admin username and password. If the credentials are wrong, then the app can run through normal user Login :)

[@SunnyRaj-bf2hu]

Can u tell me the name of the book where i can get all then android code for gui controlling like u?

[@ProfessorDK]

The problem with books is that, Android Studio keeps receiving upgrades and things won't remain the same for a long time. So I would suggest watching videos on KZbin or other premium platforms for learning Android :)

[@arjunraju5527]

sir. how to add logo on the home.

[@rupaprajapati6129]

Sir, my intend is not working even there is no error show

[@ganeshhegde8972]

Sir how can we add id in data base.

[@rajshep3009]

Hi, Nice video , i applied same code as watching videos , but i got so many error, would you help me please

[@ProfessorDK]

Could you post the error seen in your logcat?

[@gump3235]

thanks a lot!!

[@benjaminjordan2330]

I've never heard so much honking... Good video though!

[@ProfessorDK]

Welcome to India 😂

[@sunilraykar]

It’s like greeting someone. Not shouting at someone

[@ContentForGeeks]

While registration its shows loginapp is not responding , can you please tell me reason

[@ProfessorDK]

+Suraj Kishore Please post the error as seen in your logcat :)

[@chakhna]

Sir pls make video on phon auth.